Plate tectonics day 2
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Plate Tectonics Day 2. Just for fun Scrat and Continental Drift-Ice Age 4 Pangaea’s Moving Farther Apart Again Song The Continental Drift Song (Breaking Up Is Hard to Do). Review. Plate tectonic Theory http://www.odsn.de/odsn/services/paleomap/animation.html

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Plate Tectonics Day 2

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Plate tectonics day 2

Plate Tectonics Day 2

  • Just for fun Scrat and Continental Drift-Ice Age 4

  • Pangaea’s Moving Farther Apart Again Song

  • The Continental Drift Song (Breaking Up Is Hard to Do)


Review

Review

  • Plate tectonic Theory

    http://www.odsn.de/odsn/services/paleomap/animation.html

  • Surface of earth made of rigid “plates”

  • Float on asthenosphere and is in constant motion

  • Explains

    Drifting continents

    Mountain building

    Earthquakes

    Volcanic activity


Convection currents

Convection Currents


Convection currents and the mantle

Convection Currents and the Mantle


Plate tectonics day 2

ffects of crustal plate movement!


Constructive forces help build land

Constructive ForcesHelp build land

There are 3Types of Boundaries

And 1 undifined

Click picture for video

http://www.learner.org/interactives/dynamicearth/plate.html


Plate tectonics day 2

Divergent Boundaries

http://www.learner.org/interactives/dynamicearth/slip3.html

  • Boundary between two plates that are moving apart or rifting

     

  • RIFTING causesSEAFLOOR SPREADING


Pull apart

Pull Apart

platessplit; hot molten rock from the mantle rises, cools and causes the floor to spread.

Ex. The Mid-Atlantic Ridge


Divergent boundary

Divergent Boundary

Iceland Divided


Division

Division


Convergent boundaries http www learner org interactives dynamicearth slip2 html

Convergent Boundarieshttp://www.learner.org/interactives/dynamicearth/slip2.html

  • Boundaries between two plates that are colliding

     


Collide

Collide

platescrash into one another and form mountains over millions of years.

Ex. The Himalayas


Convergent boundaries

Convergent Boundaries

Himalayas


Subduction http www learner org interactives dynamicearth slip2 html

Subductionhttp://www.learner.org/interactives/dynamicearth/slip2.html

oceanic plates collide with continental plates, and slide beneath them creating trenches.

Ex. Mt. St. Helens


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